Cloud Offloading Method for Web Applications

Nowadays, cloud computing is commonly used as a service infrastructure. As the computing paradigm has been shifted to cloud computing, devices can utilize the centralized resource in the cloud. With these environments, many research papers regarding mobile cloud named Cloud Offloading which migrates the devices´ workload to the servers were proposed. However, previous Cloud Offloading method is hard to be commercialized because the proposed methods were very complex - difficulty of the program partitioning and cloning. In this paper, we proposed the framework for Cloud Offloading for the web applications based on the standard interface named Web Worker in HTML5. Because of the properties of the Web Worker, the application can do the Cloud Offloading with very little system overhead. Furthermore, an application needs to be changed only two lines of code if it needs to use the Cloud Offloading method. As a result, the clients such as mobile phones can migrate the web application workload to the servers with the various situations - out-of-battery, good network connection.